Combined door check and buffer



(No Model.)

J. GABET 86 G. KOBHLINGER.

COMBINED DOOR CHECK AND BUFFER.

No. 348,275. Patented Aug. 31, 1886.

UNITED STATES PATENT OFFICE.

JOSEPH GABET AND GUSTAV KOEHLTNGER, OF NE\V HAVEN, INDIANA.

COMBINED DOOR CHECK AND BUFFER.

SPECIFICATION forming part of Letters Patent No. 348,275, dated August31, 1886.

(No model.)

To all whom it may concern:

Be it known that we, JosErH GABET and GUSTAV KOEHLINGER, citizens of theUnited States, residing at New Haven, in the county of Allen and Stateof Indiana, have invented certain new and useful Improvements inOombined Door Stop and Buffer; and we do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

' This invention relates to combined door stops and buffers.

The object of the invention is to produce a combined door stop andbuffer by which the force of the blow of the door in opening against thewall is reduced and danger of injury to the door or wall is obviated.

Furthermore, the object of the invention is to produce a combined stopand buffer which shall be more simple and cheaper in construction thanthose heretofore constructed and so made as to be capable of beingplaced rapidly in position and without requiring any considerable amountof work.

Furthermore, the object is to produce a door stop and buffer which maybe made by the addition of parts to the most ordinary construction ofbuffer.

\Vith these objects in view the invention resides in a combined doorstop and buffer consistingin abuffer of the ordinary constructionprovided at its end with a bulb of rubber placed either upon the door orupon the base-board against which the door strikes in opening, and anopening formed either in the door or in the base-board and having itsmouth partially closed by a plate of metal provided with an opening ofsuch size as to admit the rubber bulb while in a compressed state andprevent its withdrawal except by the application of considerable forcewhen in its normal or distended condition.

Furthermore, the invention consists in a buffer provided at its end witha bulb of rubber placed either upon the door or upon the base-boardagainst which the door strikes,and an opening formed either in the dooror the base-board, having its mouth closed by a plate provided with anopening of sufficient size to admit the rubber bulb while in acompressed state and prevent its withdrawal except by the application ofconsiderable force when in its distended or normal condition, that faceof the opening against which the bulb impinges U being made to conformto the contour of the bulb, so that any lost movement shall be preventedand the door held securely in an open position until proper force isapplied to remove the bulb from the opening.

Furthermore, theinvention residesina com bined door stop and bufferconsisting in a buffer of ordinary construction provided at its outerend with a rubber bulb placed either upon the door or upon thebase-board against which the door strikes when open, and an opening orchamber formed either in the baseboard or door provided with a plate topartially close the opening and having a passage of sufficient size toadmit the bulb while in a contracted condition and prevent its withdrawal except by the application of considerable force when in itsnormal or distended condition, that portion of the opening against whichthe bulb impinges being formed of plastic material, conforming to thecontour of the rubber bulb to insure a close fit of the parts andprevent rattling.

We have illustrated the invention in the accompanying drawings, in whichFigure 1 is a side elevation of the door-stop provided with the bulb.Fig. 2 is a front elevation showing the opening either in the door orbase-board partially closed by a plate. Fig. 3 is a longitudinalvertical section showing the parts in such position as to hold the doorin an open position.

In this drawing, A represents the door, and B represents the baseboard.

In order that the device may be formed at comparatively little expenseand without requiring particular and unusual forms of all the parts, wetake the ordinary door-buffer O and provide it at its outer end with abulb of rubber, c, which is attached in any desired or suitable mannerto the buffer. This buffer is designed to be placed either upon the dooror upon the base-board; but preferably upon the latter. In order to forma socket for the re- ICQ preferably countersunk into the wood in orderto present no projections against which clothing or thelike might catch.This plate is provided with an opening, (1, of such diameter as to admitthe bulb 0 when in a slightly contracted state, and in order that theconstruction may be effected by simply opening the door and pressing thebulb against the plate, the edge of the opening in the latter is madebeveled, as shown, in order to condense the rubber as it isforcedinward. The inner face of the plate is also beveled in order to allowthe immediate expansion of the bulk as soon as it has entered theopening. The face of the chamber opposite the opening in the plate is somade as to conform to the shape of the bulb and form a bearing upon aconsiderable portion of the surface of the same, so that when the bulbhas been pressed past the plate there will be allowed comparativelylittle motion and the door held securely in place. This face E, againstwhich the bulb rests, is preferably formed of some plastic material-as,for

instance, putty, plastenof-paris, or the like, as this is more readilyformed and can be made cheaper than by making an indentation of theparticular form required on wood.

. Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is

In testimony whereof we aflix oursignatnres 0 in presence of twowitnesses.

JOSEPH GABET. GUSTAV KOEHLINGER.

WVitnesses:

GEORGE MACK, EARL LownLY.

